cotd
element-wise cotangent function, argument in degree
Syntax
y = cotd(x)
Arguments
- x
a real array.
- y
a real array with same dimensions as
x
.
Description
The entries of y
are the cotangents of the
corresponding entries of x
supposed to be given in
degree. t=cos(x)./sin(x)
. For entries equal to
n*180
with n
integer, the results
are infinite, whereas cotg(n*%pi)
is large but finite
because %pi
cannot be represented exactly. For entries
equal to n*90
with n
integers and
odd the results are exactly 0
.
Examples
cotd([30 45 60 90]) cotd([-180 -90 0 90 180])
--> cotd([30 45 60 90]) ans = 1.7320508 1. 0.5773503 0. --> cotd([-180 -90 0 90 180]) ans = Inf 0. Inf 0. Inf
See also
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